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MC74LCX245_05 Datasheet, PDF (5/8 Pages) ON Semiconductor – Low-Voltage CMOS Octal Transceiver With 5 V−Tolerant Inputs and Outputs (3−State, Inverting) | |||
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MC74LCX245
DYNAMIC SWITCHING CHARACTERISTICS
Symbol
Characteristic
Condition
TA = +25°C
Min Typ Max Unit
VOLP
Dynamic LOW Peak Voltage (Note 4)
VCC = 3.3 V, CL = 50 pF, VIH = 3.3 V, VIL = 0 V
0.8
V
VCC = 2.5 V, CL = 30 pF, VIH = 2.5 V, VIL = 0 V
0.6
V
VOLV
Dynamic LOW Valley Voltage (Note 4) VCC = 3.3 V, CL = 50 pF, VIH = 3.3 V, VIL = 0 V
â0.8
V
VCC = 2.5 V, CL = 30 pF, VIH = 2.5 V, VIL = 0 V
â0.6
V
4. Number of outputs defined as ânâ. Measured with ânâ1â outputs switching from HIGHâtoâLOW or LOWâtoâHIGH. The remaining output is
measured in the LOW state.
CAPACITIVE CHARACTERISTICS
Symbol
Parameter
CIN
Input Capacitance
CI/O
Input/Output Capacitance
CPD
Power Dissipation Capacitance
Condition
VCC = 3.3 V, VI = 0 V or VCC
VCC = 3.3 V, VI = 0 V or VCC
10 MHz, VCC = 3.3 V, VI = 0 V or VCC
Typical
Unit
7
pF
8
pF
25
pF
An, Bn
Bn, An
Vmi
tPLH
Vmo
Vmi
tPHL
Vmo
VCC
0V
VOH
VOL
WAVEFORM 1 â PROPAGATION DELAYS
tR = tF = 2.5 ns, 10% to 90%; f = 1 MHz; tW = 500 ns
OE, T/R
Vmi
Vmi
tPZH
An, Bn
tPHZ
Vmo
VCC
0V
VOH
VHZ
tPZL
tPLZ
An, Bn
Vmo
VLZ
VOL
WAVEFORM 2 â OUTPUT ENABLE AND DISABLE TIMES
tR = tF = 2.5 ns, 10% to 90%; f = 1 MHz; tW = 500 ns
Symbol 3.3 V ± 0.3 V
Vmi
1.5 V
Vmo
1.5 V
VHZ
VOL + 0.3 V
VLZ
VOH â 0.3 V
VCC
2.7 V
1.5 V
1.5 V
VOL + 0.3 V
VOH â 0.3 V
2.5 V ± 0.2 V
VCC/2
VCC/2
VOL + 0.15 V
VOH â 015 V
Figure 3. AC Waveforms
http://onsemi.com
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